I bought 844 from Wideners, too. You really need to watch their site and use the "notify me when back in stock" feature. They will send you an email. Their prices are the best, but waiting, and then ordering what you want - not everything will be in stock at the same time. 844T is supposed to burn hotter than 844 to ignite tracer rounds. One thing I have observed about 844 is that it does burn hot when duplicating 55 gr mil spec loads, so I personally wont buy 844T, because my barrel gets too hot as it is. It is a Savage bolt gun, cheap and accurate, but I wish I had a heavy barrel on it.